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CompletedNCT07018414Updated Jun 12, 2025

Abdominal Massage for Gastric Residual Volume in Surgical Patients

An interventional study of Abdominal Massage in Gastric Residual Volume, Abdominal Distension and Enteral Nutrition, sponsored by Marmara University. Completed at 1 site in Turkey. Per ClinicalTrials.gov, last updated 2025-06-12.

Sponsored by Marmara University · Not applicable, Interventional, and Supportive care

From the registry’s dates

  • Registered 1 year 1 month after the study started (first participant enrolled Apr 2024, registered May 2025).
Phase
Not applicable
Study type
Interventional
Enrollment
84
Allocation
Randomized
Sex
All
01

Study summary

This randomized controlled trial aimed to evaluate the effect of abdominal massage on gastric residual volume (GRV) and abdominal distension in surgical intensive care patients receiving enteral nutrition. The intervention group received 20-minute abdominal massage sessions twice daily for 3 consecutive days. Outcomes included changes in GRV, abdominal circumference, feeding volume, and gastrointestinal tolerance parameters.

Read the detailed description

Gastric residual volume (GRV) monitoring is commonly used in critically ill patients receiving enteral nutrition to assess gastrointestinal dysfunction, although current guidelines present conflicting recommendations regarding its necessity. Abdominal distension is a frequent complication during enteral feeding in surgical ICU patients. Non-pharmacological interventions such as abdominal massage have shown promise in improving gastrointestinal motility and enteral tolerance.

This study included 84 surgical ICU patients who met the inclusion criteria and were randomly assigned to intervention (n=42) and control (n=42) groups. The intervention group received abdominal massage twice daily for 20 minutes over three days. Data were collected using standardized forms and analyzed with appropriate statistical tests including independent samples t-test, Mann-Whitney U, repeated measures ANOVA, and chi-square tests. The findings suggest that abdominal massage may help stabilize GRV levels, reduce abdominal circumference, and increase nutritional intake without increasing complications.

02

Conditions studied

  • Gastric Residual Volume
  • Abdominal Distension
  • Enteral Nutrition
  • Massage Therapy

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Keywords

  • Enteral Nutrition
  • Gastric Emptying
  • Abdominal Distension
  • Intensive Care Units, Surgical
  • Postoperative Care
  • Gastrointestinal Motility Disorders
  • Critical Illness
  • Massage Therapy
03

In context

Critical Illness

1,780 studies on the registry are indexed under Critical Illness; 442 are open to participants now.

This study's enrollment of 84 is close to the median of 90 across 926 interventional studies indexed under Critical Illness.

Browse Critical Illness studies →

Lead sponsor

Marmara University is the lead sponsor of 599 studies on the registry; 138 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age ≥ 18 years
  • Receiving enteral nutrition via nasogastric tube
  • No prior abdominal surgery
  • No invasive devices (e.g., drains, catheters) in the abdominal area

Exclusion criteria

Exclusion Criteria:

  • Receiving enteral nutrition via PEG or PEJ
  • Receiving only parenteral nutrition
  • History of abdominal surgery
05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
84 participants (actual)

Study arms

  • Experimental
    Abdominal Massage Group

    Patients in this group received abdominal massage for 20 minutes, twice daily, for three consecutive days after the initiation of enteral nutrition.

    Behavioral: Abdominal Massage

  • No intervention
    Control Group

    Patients in this group received standard postoperative care without abdominal massage.

Interventions

  • BehavioralAbdominal Massage

    Non-pharmacological intervention involving manual massage of the abdomen to support gastric motility and reduce gastric residual volume and abdominal distension in enterally fed surgical ICU patients.

06

What researchers measure

Primary outcomes

  1. Amount of gastric residual volume (mL)

    Starting from the first day of enteral nutrition, gastric residual volume (mL) will be recorded at regular intervals every day for 3 days. The amount of GRV changing from the first day to the 3rd day will be measured and analysed.

    Time frame: Day 3

  2. Change in abdominal circumference

    Abdominal circumference will be measured on the first day of enteral feeding and abdominal circumference will be measured every day at the same time for 3 days. The change in abdominal circumference (cm) from baseline to Day 3 will be recorded.

    Time frame: Day 3

Secondary outcomes

  1. Amount of enteral feeding (mL/day)

    The total amount of nutritional product taken on the first day of enteral nutrition will be recorded for 3 days. The amount taken from the beginning to the 3rd day will be recorded in ml/day.

    Time frame: Day 3

  2. Assessment of abdominal distension

    On the first day of enteral nutrition, abdominal circumference will be measured and abdominal distension will be evaluated by auscultating bowel sounds and daily X-rays. The presence or absence of abdominal distension from the beginning to the 3rd day will be recorded.

    Time frame: Day 3

  3. Interruption of enteral nutrition

    From the first day of starting enteral nutrition, the reasons for which continuous nutrition is interrupted (for example, going to another unit for radiological examination or re-operation for revision purposes, etc.) will be monitored and recorded for 3 days.

    Time frame: Day 3

07

Study locations

1 site
  • Seyrantepe Hamidiye Etfal Training and Research Hospital, Surgical Intensive Care Units
    Istanbul, İ̇stanbul 34230, Turkey
08

References and documents

Individual participant data

Plan to share: No — This study does not plan to share individual participant data due to privacy concerns and institutional policy.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Apr 2024 to primary completion in Apr 2025, 12 months.

Of 400 non-industry interventional studies with no phase under Critical Illness, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 40. This study's 12 months is below that.

Counting every sponsor, half of 404 studies reached it within 21 months; a quarter within 12 and three quarters within 40.

Critical Illness covers many different conditions, not one, so the studies compared here vary widely. Read these figures as a rough guide.

How these figures are worked out, and which studies are left out of them.

Registered
May 23, 2025
First posted
Jun 12, 2025
StartActual
Apr 5, 2024
Primary completionActual
Apr 5, 2025
CompletionActual
Apr 5, 2025
Last update
Jun 12, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 12, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07018414
Lead sponsor
Marmara University
Responsible party
Sponsor
First posted
Jun 12, 2025
Start date
Apr 5, 2024
Primary completion
Apr 5, 2025
Completion
Apr 5, 2025
Last update
Jun 12, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jun 2025. You cannot join it, but the record below documents what was studied.

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